PR6424/011-021 EPRO

EPRO PR6424/011-021
EPRO PR6424/011-100
EPRO PR6424/109-021
EPRO PR6424/109-100

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Description

首先它以扫描的方式接收现场各输入装置的状态和数据,并分别存入I/O映象区,然后从用户程序存储器中逐条读取用户程序,经过命令解释后按指令的规定执行逻辑或算数运算的结果送入I/O映象区或数据寄存器内。等所有的用户程序执行完毕之后

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